高承压大水矿山矿坑涌水量预测的地下水数值模拟
Numerical simulation of groundwater in high pressure and large water mine
李贵仁 1赵珍 1王建国 1刘大金1
作者信息
- 1. 华北有色工程勘察院有限公司,河北石家庄 050021;自然资源部金属矿山地下水灾害防治工程技术创新中心,河北石家庄 050021;河北省矿山地下水安全技术创新中心,河北石家庄 050021
- 折叠
摘要
某铅锌矿深部矿床上覆和下伏地层均赋存高承压地下水,深部矿床间接顶、底板岩溶裂隙含水层与矿床直接含水层之间的高水头差是威胁矿山安全生产的主要因素.为给矿山深部防治水工程设计的提供依据,在分析矿区地质、水文地质条件的基础上,建立了矿区水文地质概念模型,运用 FEFLOW软件对矿区地下水进行了三维流数值模拟分析,运用识别后的模型对矿区深部开采的矿坑涌水量进行了预测,结果表明矿山厂 1 094～734 m水平正常涌水量为 8 730～1 1713 m3/d,麒麟厂971～551 m水平正常涌水量为5 977～7 557 m3/d,可作为矿山防治水设计的依据.
Abstract
High confined groundwater exists in both the overlying and underlying layers of a deep lead-zinc mine,and the high water head difference between the indirect karst fissure aquifer and the direct aquifer of the deep deposit is the main factor threatening the safe production of the mine.In order to provide the basis for the design of deep water control engineering,based on the analysis of the geological and hydro-geological conditions of the mining area,the hydro-geological conceptual model of the mining area is established,the three-dimensional flow numerical simulation analysis of the groundwater in the mining area is carried out by using FEFLOW software,and the identified model is used to predict the pit water inflow of deep mining in the mining area,The results show that the normal water inflow at the level of 1 094～734 m is 8 730～11 713 m3/d,the normal water inflow at 971～551 m level of Qilin plant is 5 997～7 557 m3/d,which can be used as the basis for mine water prevention and control.
关键词
高承压/矿坑涌水量预测/地下水数值模拟/水文地质条件Key words
high pressure/prediction of mine water inflow/groundwater numerical simulation/hydro-geological condition引用本文复制引用
出版年
2024
NETL
NSTL
万方数据